Subscriber validation system
Substation load distribution monitor system
Superconductive switching and storage device
Supervisory control system
Supervisory system in communication system
Supply meter and method for reading a fixed supply meter
Surface shape sensor, identification device using this sensor, a
Surface shape sensor, identification device using this sensor, a
Surface texture reading access checking system
Surface texture reading access checking system
Sweep circuit of key matrix
Swimming pool spotlight lighting system
Switch activating system and method
Switch and lock activating system and method
Switch components and multiple data rate non-blocking switch net
Switch composed of identical switch modules
Switch for serial or parallel communication networks
Switch interface method and apparatus
Switch lock installation
Switch matrix encoding interface using common input/output parts